Just for what it's worth, I tried to explain the context and the historical importance when I wrote about the original discovery of the tape, and about the recovery:<p><a href="https://www.theregister.com/2025/11/07/unix_fourth_edition_tape_rediscovered/" rel="nofollow">https://www.theregister.com/2025/11/07/unix_fourth_edition_t...</a><p><a href="https://www.theregister.com/2025/12/23/unix_v4_tape_successfully_recovered/" rel="nofollow">https://www.theregister.com/2025/12/23/unix_v4_tape_successf...</a>
This is the result of the tape from 1973 found at the University of Utah being sent over to the Computer History Museum for retrieval by bitsavers.org<p>Prior discussion: <a href="https://news.ycombinator.com/item?id=45840321">https://news.ycombinator.com/item?id=45840321</a>
It still amazes me that even with all this functionality, it runs on a system with only 64k of RAM.
Has anyone managed to extract out the C source files and upload them into some browsable UI, e.g. GitHub or GitLab?
I think they’re in the Unix history repo. Browsing there, it may be <a href="https://github.com/dspinellis/unix-history-repo/commits/Research-V4-Snapshot-Development/" rel="nofollow">https://github.com/dspinellis/unix-history-repo/commits/Rese...</a>
[flagged]